I would presume that many predators have followed that exact line of thinking, and there may be population pressure pushing them towards other fields. Any ecological model will show that a certain population of prey can support only so many predators, if you'll pardon the pun, so some must naturally migrate to fill other niches that, while not as abundant, are less crowded with competition. You'll probably find less sophisticated predators in these sparser environments, as they were outcompeted by "stronger" (read, more careful, charismatic, and effective) predators in the richer ecologies.

An interesting thought. Under this model, (and I realize that this is a post-facto realization, but what can we do?) we would expect to see significantly more reports of predator behavior in these less competitive niches than the objective number of predators would imply, because the predators in them are less skilled at hiding their predation than predators in the more prey-rich environments.

Abusers will use the platform they have